Update doc/python/hover-text-and-formatting.md

Author: LiamConnors

doc/python/hover-text-and-formatting.md

@@ -254,7 +254,7 @@ fig.show()
 
 ### Specifying the formatting and labeling of custom fields in a Plotly Express figure using a hovertemplate
 
-This example adds custom fields to a Plotly Express figure using the custom_data parameter and then  adds a hover template that applies d3 formats to each element of the customdata[n] array and uses HTML to customize the fonts and spacing. 
+This example adds custom fields to a Plotly Express figure using the custom_data parameter and then adds a hover template that applies d3 formats to each element of the customdata[n] array and uses HTML to customize the fonts and spacing. 
 
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